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RAX120 constantly rebooting, fan never runs, temperature is NaNC, getting up to 265 deg F
I highly recommened avoiding this router, it has major heat issues. The RAX120 is randomly and constantly rebooting. I did some troubleshooting and it turns out I can get consistent readings of 1...
I just purchased this router October of 2022. Version 2, latest firmware. Connected to a CM2000 with included cable. 6JY. The whole router itself isn't that hot but something inside the router is getting to 265 degrees F, I got the reading several times while trying to angle the laser underneath the fan through the mesh. I can take a picture or video if you need proof. It makes sense considering there is a fan that isn't functioning properly that is supposed to be cooling something. There's absolutely no air flow or cooling taking place.
There is a beta FW available if your interested trying it. Been many users reporting it fixes the reboot issue. https://community.netgear.com/t5/Nighthawk-with-WiFi-6-AX-and/RAX120-V2-Constant-Random-Reboots/td-p/2176753/jump-to/first-unread-message
What CAT# lan cable are you using between the modem and router? CAT6A STP would be recommended.
As suggestion and something I've been using, I use a laptop fan cooler under any router I have online. Provides 24/7 cooling and helps save the HW from heat damage over time.